Box-car door.



G. NORTH.

BOX GAR DOOR. APPLICATION FILED JUNE 24, 1912.

Patented Sept. 9, 1913.

2 sums-sum 1.

lllllll I I q/vflmeooeo BIA PLANOGRAPH CO..WASHXNGTON D c c.N0RTHi BOX GAR DOOR.

APPLICATION FILED JUNE 24, 1912.

Patented Sept. 9,1913.

2 SHEETS-SHEET 2.

abbowaao COLUMBH PLANOGRAPH C0,, WASHINGTON, D. c.

CHARLES NORTH, OF COLORADO SPRINGS, COLORADO.

BOX-GAR noon.

i Specification of Letters Patent.

Patented Sept. 9, 1913.

Application filed June 24, 1912. Serial N 0. 705,608.

To all whom it may concern Be it known that I, CHARLEs NORTH,

i to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in car doors, and particularly to doors for box or grain cars.

One object of the invention is to provide a door of this character formed in a plurality of independently movable sections and having an improved means for fastening said sections in operative position to form a positively grain-tight closure for the door. opening of the car.

A further object is to provide an improved construction and arrangement of relief door whereby the grain or other contents of the car may be removed without opening the main door.

invention consists of certain novel features of construction, and the combination and arrangement of parts as will be more fully described and claimed. I

In the accompanying drawings: Figure 1 is an outer side view of a portion of one .side of a car having my lmproved door applied thereto and showing the door in closed position; Fig. 2 is a vertical cross sectional view on the line 2-2 of Fig. 1; Fig. 3 is a similar View showing the door in open posit-ion;v Fig. tisfa vertical longitudinal sectional view of a portion of the side ofa car showing the door in closed position, and

illustrating the relief door in 'position'to dis charge the grain from the car; Fig; '5 is a.

notes the door frame around an opening in the side'of the car. On the inner side of the car and spaced a suitable distance from the side wall thereof is a casing 3, between whichand'the wall of the car is slidably mounted my improved door.

The door is constructed of two or more,

upper edge of the lower door member;

horizontally slidable members, and is here shown as consisting of a lower member 4 and an upper member 5, said members being of suflicient width to extend from the bottom to near the top of the car. The lower member f is preferably somewhat wider than the upper member, and when said members are in closed position the upper member 5 rests on and has a grain tight engagement wit-l1 the lower member 4:. When, however, the members 4 and 5 of the door are slipped back into the casing 3 to an open position, the upper member 5 is separated from the lower member 4 by'a horizontally disposed supporting rail 6 which" is arranged in the casing immediately above the lower member of the doorand is designed to support the upper member, thereby permitting the lower member to bereadily shifted to an open or closed position without disturbing the upper member. I In order to facilitate the engagement of the open position and to permit said upper member to drop down into grain tight en With these and other objects in View, the

gagement with the upper edge of the lower member when said upper member is shifted surface, as shown at 7, and the lower'edge f parts with the beveled surfaces? and 8,-it will be seen that when theupper member of the door is shifted to a" full closed position the beveled surface 8 of the doormeinher will come into engagement with the beveled surface 7 on the end of the rail 6, thus causing said doorfmember to drop or slide downwardly into engagement with the It will-also be seen that as soon as the upper member is started back on its opening movement, that the'engagement of the beveled surfaces 7'and 8 will lift andguide the upper member of the door back on the rail (3.

In order to prevent the outer'ends of the door members from rising when in closed or operative position, I provide the outer edges of said members with notches 9 which are engaged with stop pins or bolts 10 connecting the side of thecar and the adjacent of the upper member 5 of the door is also 1 beveled, as shown at 8. By providingthe pin 11 inthe inner edge ofone wing herQ' inafter described.

The door fastening mechanism comprises a pair of locking wings or bars 12, one of which is connected to each side of the door inner side of the car.

frame 2 by hinges 2, said wings being adapted to swing inwardly to bring their free edges into engagement with the outer sidesof the door members t and 5 when the latter are in closed position, and said wings or bars are of such width that when swung inwardly in operative position they will firmly" clamp the door members into grain tight engagement with their casing on the I In order to hold the wings 12 in closed position and to positively prevent the door members 4; and 5 from jarring orslipping back in their casing, I provide'locking bolts 13 which are'secured to the outer sides of the wings and are adapted to be shifted into engagement with suitable keepers 14. in the outer sides of the door members 4 and 5, as shown. Hence the pressure'of the grain inthe car which is outward "against the door members 4 and 5 bears themagainst the wings and is resisted by the hinges 2f solong as the wings remain i-n the position shown in Fig. 2, and the engagement of the bolts 13 with the keepers letholds the wings in this position so that the bolts themselves do not take the strain of the grain. The stud or stop pin 11 in the left-hand wing passes over the upper edge of the uppermember 5 as this wing is turned into position, as seen in dotted lines in Fig. l, and said stud therefore prevents this member from rising. So long as it cannot rise, the engagement of the beveled surfaces 7 and 8 prevents it from moving to the left, and therefore this position of the 'left'wing whilemaintained will prevent the opening of the upper door member. The wings 12 are preferably provided with suitable knobs or handles 12, whereby they may be readily operated. V I

In the lower member 4 of the door .a slight distance above the floor of the car is a grain discharging opening 15 through which the grain or contents of the car may be removed without opening the door. The opening 15 is provided with a relief door in the shape of a plate 16 which lies against the outer side ofthe door member 4. When the door memher 4 is in a closed position the plate 16 is held in sliding engagement therewith by rewhat I claim is:

heldi n an elevated position to uncover the opening 15 by means of a chain 17 or other suitable form of supporting element which is connected to the top of the door frame or some other suitable support, and is provided on'its lower end with a hook 18 adapted to be engaged with an eye or opening 19 in the plate 16, as shown.

In opening a door as thus constructed, the relief door or plate 16 is first raised in the recesses 16 in the inner sides of the wings, and theuncovering of the opening 15 relieves the pressure bearing against the inside ofthe main door. When this pressure has been reduced, the bolts 13 are retracted and the wings 12 swung outward to the position seen inrFig. 3. This carries the stop pin 11 away from the top of the door section 5, and the latter may then be raised and slid aside over the track 6, after which the bulk of the grain within the car can be unloaded. in the usual manner. Finally when the grain is nearly all gone, the lower door section 4 is slid aside in the ordinary way. Meanwhile the relief door 16 can hang from the cord as shown, or may be entirely removed so as to be out of the way. A car door constructed and arranged as herein shown and described will form a positively grain tight closure for the door opening in the car, and said door may be quickly and easily shifted to closed and open position and securely fastened in closed position. It will also benotedthat my improved door may be readily applied to any form of boXicar already constructed or in course ofconstruction.

F roni the above description taken in con nection with the accompanying drawings, the construction and operation .of the invention will be readily understood without requiring a .more'extended explanation.

Various changes in the form, proportion .andthe minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of the invention as described and claimed.

Having thus described my invention,

' v1. Ina grain car door, the combination with the car wall having an opening surrounded by a frame, a casing at one side of the opening, a horizontal track fixed between said wall and casing and beveled at its inner end, upright wings hinged to the side bars of said frame, a stop pin carried by one'of said wings, and bolts on the inner edges of the wings; of the door made in upper and lower members whereof the lowermost has a relief opening and the uppermost is movably disposed upon the lowermost and has a beveled corner adapted to :ride over the beveled end of said track, the width of said members being such that they are engaged by said wings when the latter are swung inward, said wings having recesses in their inner edges, a relief door movably mounted in said recesses over the outer face of the lower main door memher, and keepers on both door members adapted to be engaged by said bolts, for the purpose set forth.

2. In a grain car door, the combination with the car wall having an opening surrounded by a frame, the casing at one side of the opening, a horizontal track fixed between said wall and easing, upright wings hinged to the side bars of said frame, and bolts on the inner edges of the wings; of the door made in upper and lower members whereof the lowermost has a relief opening and the uppermost is movably disposed uponthe lowermost and adapted to ride over said track, the width of said members being such that they are engaged by said wings when the latter are swung inward, said wings having recesses in their inner edges, a relief door movably mounted in said recesses over the outer face of the lower main door member, and keepers on both door members adapted to be engaged by said bolts, for the purpose set forth. V

3. In a grain car door, the combination with the car wall having an opening surrounded by a frame, the casing at one side of the opening, a horizontal track fixed between said wall and casing and beveled at its inner end, upright wings hinged t the side bars of said frame, a stop pin carried by one of said wings, and bolts on the Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 7

inner edges of the wings; of the door made in upper and lower members whereof the uppermost is movably disposed upon the lowermost and has a beveled corner adapted to ride over the beveled end of said track, the width of said members being such that they are engaged by said'wings when the latter are swung inward, and keepers on both door members adapted to be engaged by said bolts, for the purpose set forth.

4. In a grain car door, the combination with the car wall having an opening surrounded by a frame, the casing at one side of the opening, a horizontal track fixed be-- tween saidwall and casing'and beveled at its inner end, upright wings hinged to the side bars of said frame, and bolts on the inner edges of the wings; of the door made in upper and lower members whereof the uppermost is movably disposed upon the lowermost and adapted to ride over said track, the width of said members being such that they are engaged by said wings when the latter are swung inward, and keepers on both door members adapted to be engagedby said bolts, for the purpose set forth. a

In testimony whereof I have hereunto setmy hand in presence of two subscribing witnesses.

CHARLES NORTH.

Witnesses C. L. MoKnssoN, B. F. RICE.

Washington, I). G. 

